The Delta Star medium-power product list goes far beyond power transformers. We have a strong reputation for providing the flexibility to build Auto and Ground Transformers, Voltage Regulators, Mobile Circuit Protectors, and Mobile and Portable Substations. As a result, Delta Star is the only North American transformer manufacturer with the breadth of products to meet all your power needs.
Below is a partial list of our capabilities, including MVA and voltages:
| Power w/o LTC |
10 - 120 |
15(110) – 230(900) |
4(75) – 115(550) |
| Power w/ LTC |
10 - 100 |
15(110) – 230(900) |
4(75) – 115(550) |
| Auto w/o LTC |
15 - 180 |
69(350) – 230(900) |
34.5(200) – 161(650) |
| Auto w/ LTC |
15 - 150 |
69(350) – 230(900) |
34.5(200) – 138(650) |
| Voltage Regulator |
20 - 50 |
15(110) – 115(550) |
+/-10-15% Regulation |
| Grounding Transformer |
- |
15(110) – 115(550) |
Custom Z% or I-fault |
| Generator Step-up (GSU) |
10 - 120 |
15(110) – 230(900) |
4(75) – 115(550) |
| Unit Auxiliary Transformer (UAT) |
5 - 60 |
15(110) – 34.5(200) |
2.4(60) – 25(150) |
| Mobile Substation |
5-100 (ODAF) |
25(150) – 230(650) |
2.4(60) – 69(350) |
| Mobile Circuit Protection |
- |
15 - 230 |
- |
Many factors influence the above criteria, such as:
- Impedance
- Sound Level
- Loss Evaluation
- Temperature Rise
- Basic Impulse Level (BIL)
- Limiting Dimension
- State Highway Road Limits (Mobile Transformers)